Recyclable crosslinked polymer networks containing dynamic dialkyl amino disulfide linkages

A composition for forming a dynamic crosslinked polymer network, the composition comprising

• a dynamic crosslinker having formula R—R″R′N—S—S—NR′R″—R, wherein each R is a polymerizable group comprising a carbon-carbon (C—C) double bond capable of undergoing free radical polymerization, wherein each R′ and each R″ is an alkyl group, and further wherein one of R′ and R″ on each respective nitrogen is substituted with a respective R as a substituent thereon, wherein R′ and R″ are not covalently bound together and do not form a cycloalkyl group containing a respective nitrogen;
• a polymer comprising a C—C double bond capable of undergoing free radical polymerization, a monomer comprising a C—C double bond capable of undergoing free radical polymerization, or combinations thereof;
• and
• a free radical initiator,
• wherein the dynamic crosslinker does not comprise a urethane group.